Quick return for screw-press mechanisms.



Patented June 8,1909.

IRS ca, mun"! I n c A W WILLIAMS QUICK RETURN FOR SCREW PRESS MEGHANISMS.

APPLIOATION FILED MAY 22, 1908.

ZQTMM ALONZO W. WILLIAMS, OF HOMESTEAD, PENNSYLVANIA.

QUICK RETURN FOR SCREW-PRESS MECHANISMS.

Specification of Letters Patent. Application filed. May 22, 1908. Serial No. 434,262.

No. 924,122. Patented June 8, 1909.

To aZZ wh0m it may concern:

Be 1t known that I, ALoNzo W. WILLIAMS,

[ ed to register with the orifice 0 in the yoke, a citizen of the United'St-ates, residing at i l l the transverse diameter of which is less than its conjugate diameter and is threaded on one side only correspondingly with the screw, for the purpose hereinafter described. A spiral spring 9 is seated between the inner end of the plug 8 and the bottom of the Homestead, R. F. D. 129, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in a Quick Return for Screw-Press Mechanism, of which improvement the following is a socket for the purpose of holding the threadspecification. v ed side of the orifice c in engagement with My invention relates to improvements in the screw, as shown in Fig. 2. By pushing screw pressure mechanism for presses, and) the plug 8 inwardly and thus compressing particularly to mechanism of this character I the spring, the plug is disengaged from the for use in lard, fruit and similar presses. screw which is then enabled to be readily The object of my invention is to produce and quickly elevated or lowered in the oria device in which the pressure screw can be fice. quickly elevated and lowered. I accomplish The special advantage of my improvement this object by means of the apparatus hereis that it enables the pressure foot to be inafter described, reference being had to the brought to its most elevated position, as accompanying drawings, forming part hereshown in Fig. 1, quickly, thus avoiding the of, in whichwaste of time which occurs in construct-ions Figure l is an elevation, partly in section, in which, to accomplish this object, the screw of a lard press embodying my improvement. has to be operated in a reverse direction to Fig. 2 is a central section through the screw that necessary to force the foot in contact socket. Fig. 3 is a transverse section on line with the substances under treatment. 3-8 of Fig. 2. I claim as my invention and desire to se- Referring to said drawings, 1 is the cure by Letters Patent: base plate of the press which is pro- 1. In quickreturn for screw presses, the vided with the trough a or other suitable combination of a screw, a support therefor means for receiving and holding the subhaving an orifice in which the screw is opstance forced by compression from any suberably disposed and a socket extending from stance contained in the vat or vessel 2 as one side and intersecting said orifice; a plug hereinafter described. The said vat is proseated in said socket provided with an vided with numerous perforations b, as orifice threaded on one side and adapted to shown, and secured upon the base plate in register with said first mentioned orifice and any suitable manner. The pressure mechanadapted to engage with and to be disengaged ism is mounted upon the vertical posts 3, 3, from said screw. which are fixed firmly in the base, as shown, 2. In pressure mechanism for presses, the the upper ends thereof having mounted combination of a screw, a stationary yoke thereon the yoke 4, in which the pressure having a vertically disposed orifice centrally screw 5 is supported, the upper end of the thereof, a socket intersecting said orifice, a screw being provided with a suitable handle plug having an orifice adapted to register 6 or means to operate the same, and its lower with the orifice in said yoke, one side of said end has secured thereto, in any suitable manplug having a thread, and a spiral spring ner, the pressure foot 7. The said yoke is seated in said socket between the end of said provided with a vertically disposed orifice c plug and the bottom of said socket. and with a transversely disposed socket d 3. In quick return mechanism for screw which intersects and extends laterally bepresses, the combination of a screw, a supyond said vertically disposed orifice, and in port therefor having an orifice in which the which the plug 8 is seated. The said plug screw is operably disposed, and a socket exis provided with an orifice e which is adapttending from one side and intersecting said orifice; a plug seated in said socket and In testimony whereof, I have hereunto provlded with an orlfice the c0n ugate dlsigned my name in the presence-0f two subaineter of Winch is greater than its trans scriblng witnesses.

Verse diameter, and having a thread on one ALONZO \V. WILLIAMS. 5 side thereof, the said plug being adapted to In the presence 01- engage with and to be disengaged from said CLARENCE A. VVILLTAMS,

screw. JOHN H. RONEY. 

